<template>
  <el-container class="main-container">
    <!-- 头部区域 -->
    <el-header>
      <!-- 左侧的 logo -->
      <img src="../../assets/images/logo.png" alt="" />
      <!-- 右侧的菜单 -->
      <el-menu
        class="el-menu-top"
        mode="horizontal"
        background-color="#23262E"
        text-color="#fff"
        active-text-color="#409EFF"
      >
        <el-submenu index="1">
          <template slot="title">
            <!-- 头像 -->
            <!-- v-if  v-else 如果有头像就显示头像 没有则显示默认的头像 -->
            <img :src="userInfo.user_pic" v-if="userInfo.user_pic" alt="" class="avatar" />
            <img src="../../assets/logo.png" v-else alt="" class="avatar" />
            <span>个人中心</span>
          </template>
          <el-menu-item index="1-1"><i class="el-icon-s-operation"></i>基本资料</el-menu-item>
          <el-menu-item index="1-2"><i class="el-icon-camera"></i>更换头像</el-menu-item>
          <el-menu-item index="1-3"><i class="el-icon-key"></i>重置密码</el-menu-item>
        </el-submenu>
        <el-menu-item index="2" @click="out"><i class="el-icon-switch-button"></i>退出</el-menu-item>
      </el-menu>
    </el-header>
    <el-container>
      <!-- 侧边栏区域 -->
      <el-aside width="200px">
        <div class="user-box">
          <img :src="userInfo.user_pic" v-if="userInfo.user_pic" alt="" />
          <img src="../../assets/logo.png" v-else alt="" />
          <span>欢迎 {{userInfo.nickname||userInfo.username}}</span>
        </div>
        <!-- default-active     默认激活项
             active-text-color  激活时文本的颜色
             unique-opened      同时只能展开一个包含子菜单的一级菜单
         -->
        <el-menu
          default-active="1"
          class="el-menu-vertical-demo"
          background-color="#23262E"
          text-color="#fff"
          active-text-color="#409EFF"
          unique-opened
          router
        >
        <!-- router 开启路由模式 启用该模式会在激活导航时以 index 作为 path 进行路由跳转 -->
         <template v-for="item in menuList">
             <!-- 不包含子菜单的“一级菜单” -->
          <el-menu-item :index="item.indexPath" :key="item.indexPath" v-if="!item.children"><i :class="item.icon"></i>{{item.title}}</el-menu-item>
          <!-- 包含子菜单的“一级菜单” -->
          <el-submenu :index="item.indexPath" :key="item.indexPath" v-else>
            <template slot="title">
              <i :class="item.icon"></i>
              <span>{{item.title}}</span>
            </template>
            <el-menu-item :index="childrenItem.indexPath" v-for="childrenItem in item.children" :key="childrenItem.indexPath"><i :class="childrenItem.icon"></i>{{childrenItem.title}}</el-menu-item>
          </el-submenu>
         </template>
        </el-menu>
      </el-aside>
      <el-container>
        <!-- 页面主体区域 -->
        <el-main>
          <!-- Main.vue后台主页 -->
          <router-view></router-view>
        </el-main>
        <!-- 底部 footer 区域 -->
        <el-footer>© www.itheima.com - 黑马程序员</el-footer>
      </el-container>
    </el-container>
  </el-container>
</template>

<script>
import {mapState} from 'vuex'
export default {
  name: 'Main',
  computed:{
    // 将userInfo映射到当前计算属性中
    ...mapState(['userInfo','token'])
  },
  created(){
    this.$store.dispatch('initUserInfo')
    this.getMenus()
    // if(!this.$store.state.token){
    //   this.$router.push('/login')
    // }
  },
  data(){
    return{
      menuList:[]
    }
  },
  methods: {
    out(){
      this.$confirm('你真的要退出吗, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$message({
            type: 'success',
            message: '退出成功!'
          });
          this.$store.commit('updateToken','')
          this.$store.commit('updateUserInfo',{})
          this.$router.push('/login')
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消退出'
          });          
        });
    },
    async getMenus(){
      const {data:res} = await this.$http.get('/my/menus')
      console.log(res)
      // 将获取的数据存入到menuList中
      this.menuList = res.data
    }
  },
}
</script>

<style lang="less" scoped>
.main-container {
  height: 100%;
  .el-header,
  .el-aside {
    background-color: #23262e;
  }

  // 左侧边栏用户信息区域
.user-box {
  height: 70px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid #000;
  border-bottom: 1px solid #000;
  user-select: none;
  img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #fff;
    margin-right: 15px;
    object-fit: cover;
  }
  span {
    color: white;
    font-size: 12px;
  }
}
// 侧边栏菜单的样式
.el-aside {
  .el-submenu,
  .el-menu-item {
    width: 200px;
    user-select: none;
  }
}
  .el-header {
    padding: 0;
    display: flex;
    justify-content: space-between;
  }
  .el-main {
    overflow-y: scroll;
    height: 0;
    background-color: #F2F2F2;
  }
  .el-footer {
    background-color: #eee;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
}

.avatar {
  border-radius: 50%;
  width: 35px;
  height: 35px;
  background-color: #fff;
  margin-right: 10px;
  object-fit: cover;
}
</style>
